31. Oleoresins are similar to perfumery resinoids, which are prepared also from animal secretions. 32. Patchouli oil is an important material in perfumery . 33. Changing tastes and the development of modern chemistry laid the foundations of modern perfumery . 34. She became fascinated with perfumery , took classes and began collecting books on the subject. 35. It is used extensively in modern perfumery . 36. This colourless liquid is used in perfumery . 37. It has a pleasant odor resembling wintergreen and is used in perfumery and artificial flavors. 38. Perillaldehyde can be readily converted to perilla alcohol, which is also used in perfumery . 39. Perfume and perfumery also existed in Indus civilization ( 3300 BCE-1300 BCE ). 40. Also held on campus are workshops in perfumery and aromatherapy for professionals and amateurs alike.